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APRS station KF7EFI-9 - show graphs
Comment: 146.460MH
Location: 37°25.06' N 122°07.91' W - ตำแหน่ง CM87WK40EF - show map
7.6 km ตะวันออกเฉียงใต้ bearing 130° มาจาก Atherton, San Mateo County, California, United States [?]
8.5 km ตะวันออกเฉียงใต้ bearing 138° มาจาก North Fair Oaks, San Mateo County, California, United States
22.7 km ตะวันตกเฉียงเหนือ bearing 293° มาจาก San Jose, Santa Clara County, California, United States
47.1 km ตะวันออกเฉียงใต้ bearing 147° มาจาก San Francisco, San Francisco County, California, United States
Last position: 2024-09-04 18:42:21 UTC (285d 23h36m ago)
2024-09-04 11:42:21 PDT เวลาท้องถิ่น Atherton, United States [?]
Altitude: 13 m
Device: aprs.fi: iPhone/iPad app (app, ios)
Last path: KF7EFI-9>APFII0 via WIDE1-1,WIDE2-2,qAR,NZ6J-13 (good)
Positions stored: 12288
About this site
This page shows real-time information collected from the Automatic Position Reporting System Internet network (APRS-IS). APRS is used by amateur (ham) radio operators to transmit real-time position information, weather data, telemetry and messages over the radio. A vehicle equipped with a GPS receiver, a VHF transmitter or HF transceiver and a small computer device called a tracker transmits it's location, speed and course in a small data packet, which is then received by a nearby iGate receiving site which forwards the packet on the Internet. Systems connected to the Internet can send information on the APRS-IS without a radio transmitter, or collect and display information transmitted anywhere in the world.
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